Nucleon U2421 Stereo USB-A Headset ensures a clear and high-privacy call anytime, anywhere!

• Manufacture Discontinued 07/25 – Replaced by Nucleon U2422
• Built for UC applications and softphones from Avaya, Cisco and others
• Optimized for Microsoft Teams
• Cancels 96% of background noise!
• Inline Controls for answer/end, volume +/- and mute
• Three advanced noise-cancelling microphones ensure your voice is crystal-clear
• Proprietary AENC voice algorithms are designed to distinguish your voice from others, ensuring that only your voice is transmitted
• Memory foam cushions wrapped in skin-friendly protein leather, providing a luxurious experience for extended wear
• Provides excellent sealing, effectively reducing external noise for the user
• 27mm speaker is powerful and leak-tolerant, delivering rich, high-definition audio for calls and music alike
• 360° Busylight for less interruption and fewer missed calls
• Busylight will turn red while you’re on a call, the red light will flash to notify of incoming call
• Make a truly seamless collaboration with Microsoft Teams Optimization
• Lightweight body comes with 90° pivoting speakers and adjustable headband, ensures a great fit
• To Disable inline controls: press and hold the mute button for 5 seconds, then press and hold the call button for 5 seconds.  Do the same to Enable again.
• Being replaced by Nucleon Agent U2521 Oct 2025
• In the Box: U2421 USB-A Headset, carrying case, quick start guide
• 2 year manufacture warranty